Electric fixture



SPRECHE ELECTRIC FIXTURE Filed Jan. 25, 1925 Patented June 30, 1925.

"PATENT OFFICE.

{BE'IER w. SPRECHER, or MILWAUKEE; 'wrsoonsm.

ELEc'rRIc FIX URE.

Application filed January 23, 1925. Serial No; 4,210.

To all whom it may concern;

Be it known that-I, PETER W'. Srnnorrna,

a citizen of the United States, and resident of Milwaukee, in the countyof Milwaukee and State of WVisconsin, have invented cer tain new anduseful Improvements in Electric Fixtures; and I do hereby declare thatthe following is a full, clear, and-exact description thereof. L

This invention relates to fixtures.

Objects of this invention are to provide a fixture in which asupporting'strap carried by the hickey may be secured to a canopy.orjceiling collar in a simpleand effective manner without requiring anyshaping of the canopy or cam action of the strap, but in which the;canopy and associated parts are directly fca-rried by the socket and maybe easily removed or replaced without disturbing the electricalconnections.

Further objects are to provide an electrical fixture in which the canopyis auto-' matically grounded when secured to the socket. 1

Further objects are to provide a fixtur which may be removed or replacedby an unskilled operator and which is soconstructed that it is ofornamental and attractive appearance.-

An embodiment of the invention is shown in the accompanying drawings, inwhich Figure 1 is a sectional View through the fixture.

Figure 2 is a sectional View on. the line 22 of Figure 1.

Referring to the drawings, it will be seen that an outlet box 1 is setwith its marginal edges flush with the ceiling 2 and that a hickey 3 issecured by means of bolts or other suitable fasteners within the box.

This hickey is provided with apertures 14;

and 5 for'the passage of the wires and is further provided with adownwardly projecting threaded portion 6. A cap? is screwed upon thedownwardly threaded portion and has an outwardly projecting ear 8provided with a threaded aperture 9.

A U-shaped strap or supporting member is provided which has a transverseportion 10 and upwardly projectingdiverging legs 11 provided withoutwardly extending feet 12. An elongated bolt 13 is passed through thetransverse portion 10 and is screwed into the threaded aperture 9 thusfirmly positionber 20 is also retaine 7 ing the supporting strap withits feet 12 in contact with the ceiling 2.

A socket 14 is provided and is equipped with a U-shaped clip 15 (seeFigure 2) which issecured within a recessed portion of the socket bymeans of a bolt 16, and such recessed portion is filled with anysuitable material, as indicated at 17., The upper portion of the clip15is positioned :above the transverse portionlO of the supporting strap.Preferably, the supporting strap is made of wrought iron or structuralsteel and is provided with a brass'bushing 18 (see Figure 2). Thisbushing is provided, with a threaded aperture into whichan attachingscrew 19 passes, suchscrew securing the clip 15 in place (see Figure 2).It

is to be noted upon further reference to Figure 2 that a sprin orgrounding membeneath the head of the screw'19. Referring to Figure'2, itwill be seen that the socket is provided with a threaded shell 21 in theusual manner adapted to receive the lamp. The outer sleeve 22,preferably formed of porcelain or other insulating material is screwedupon. the exterior of the threaded sleeve 21, as shown in Figure 2, andis provided with an enl-ar ed lower portion 23, preferably equippe witha roughened or fluted lower comcal face 24,

as shown in Figure 1. This enlarged portion has a flat .faeeor shoulder25 on the up er'side of the enlarged portion23. ny suitable type lofcanopy or sealing collar member may be employed, and for assembling, thecanopy may conveniently be formedof two parts 26 and 27 adaptedtorespe'ctively contact with the. ceiling 2 and with the shade or lobe28. These portions tending flanges 29.

In assembling the. device, the cap- 7 is screwed in place and theattaching strap secured by means of the bolt 13, as previouslydescribed. The socket is securely held to the'transverse portion of thesupporting strap. The canopy is slipped in place, and the outer sleeve22 is screwed upon the threaded shell 21 of the socket, with theshoulder 25 engaging the under side of the inwardly extending flange 29of the canopy.

It will be seen, therefore, that no cooperating cam faces need beprovided be-' of the canopymay e joined by inwardly extween thesupporting strap and the canopy and that no'additional screws, pinsor'plun-. gers need be employed for retaining theperfect grounding ofthe canopy without any attention whatsoever on the part of theelectrician.

It is also to be noted that this fixture may be most readily cleaned andthat the canopy and globe. may be most easily removed by an unskilledoperator without "disturbing any of the'electricai connections. F orfexample, it is merely necessary to remove the globe 28 and, thereafter,unscrew the outer sleeve 22 by manipulating larged lowenportion 23thereof,- -'-rthe-.fluted portion 24 on the lower side or part of thesleeve affording a secure grip for the 'ope'r-" ators fingers. The partsmay be readily washedor otherwise cleaned and easily re-' placed.

It will thus be seen that a fixture has been provided which may be mosteasily assembled, in which the exposed parts may be readily taken downfor cleaning and'as easily replaced.

Further, it will be seen that there are. no fragile or complicated partsto the fixture but that all of the parts are relatively strong.

While I have shown the plug shell 4 attached to the til-shaped strip 10by means of a screw 6, I may vary this means of-attachment.

Although the invention has been described in considerable detail, it isto be understood that the invention may be variousl em,-

. bodied and is, therefore, to be limits only as claimed. 7 g

" I claim:

1. An electric fixture-comprising a cap, a

supporting strap having a transverse lower "POItIOII and a pair-ofupwardly extending arms adapted to contact with a wall surface,"

a screw extending through said transverse the engaging said canopy.

portion and screwed into said cap', a socket carried by said transverseportlon and having an outer; shell removably screwed. on"

said socket, and a canopy surrounding said supporting strap and held inplace by the removable shell of said socket.

2. An electric'fixture comprising a cap, a

supporting strap having a transverse lower portmn and a pair of upwardlyextending" arms adapted to contact with a wall surface, f

a screw extehding through said transverse portion and screwed into saidcap, a socket carried by said transvrse portion and having an outershell. rcmovably screwed on said socket, a canopy surrounding saidsupporting strap and held in place by the removable shell of saidsocket, and a grounding spring carried by said. strapand adapted tocontact with said canopy.

3. An electric fixture comprising a cap,

an inverted U-shaped strap having outwardly extending feet positionedupon op posite sides oi. said ca an elongated screw passing through saidstrap and screwed into said cap, a socket secured to the lowerportion'o'f said strap and having an externally threaded portion, acanopy surrounding said strap and socket and having an. inturned flange,and an internally threaded sleeve screwed upon said socket and having anoutwardly extendiilg flange engaging the flange of said canopy andholding said canopy in. place. I

4:. An electric fixture comprising a cap, an inverted U-shaped straphaving outwardly extending feet positioned upon opposits sides ofsaid'cap, an. elongated screw passing through said strap and screwedinto said cap, a socket secured to the lower por tion of said strapandhaving an externally strap and socket and having an inturned flange, aninternally threaded insulating sleeve screwed upon said socket andhaving an outwardly extending flan e engaging the flange of said canopyand holding said canopy in place, and a grounding spring secured to saidstrap and frictionally en- In testimony that I claim the foregoing Ihave hereunto set my hand at Milwaukee, in the county of Milwaukee andState of Wisconsin.

Paras w. SPRECHER threaded portion,- a canopy surrounding said

